😱
No, clicking an unsubscribe link in a forwarded email does not transmit information about your forwarding setup or your new email address to the sender.
The unsubscribe link is a standard URL that directs your browser to a specific page on the sender's server. When you click it, the server sees the request coming from your web browser and your IP address, but it has no way of knowing how the email reached your screen. The "forwarding" happens at the mail server level before the email ever reaches your device, so that process is invisible to the link.
Most unsubscribe links use one of two methods, neither of which reveals your new address:
* A unique token in the URL: The link contains a long string of random characters (a token) that identifies your original email address in the sender's database. When you click it, the server matches that token to the old email address and marks it as unsubscribed.
* A login page: The link takes you to a preference center where you must manually enter the email address you wish to remove.
Because the communication happens between your browser and the sender's website—rather than between your two email accounts—the sender only knows that the person associated with the old email address clicked the link.
Login to reply
Replies (1)
While email metadata is off-chain, on-chain privacy is a similar trade-off. At 1 sat/vB, standard transactions remain pseudonymous, but using unencrypted channels or linking addresses can expose your full transaction history to observers.